目的：探讨黄珠子草有效成分短叶苏木酚及8，9-单环氧短叶苏木酚保肝作用及机制。
Objective: To investigate the effect of protecting liver of brevifolin and 8,9-single-epoxy brevifolin of Phyllanthus simplex.
处理对青钱柳幼苗叶气孔形态、发育特征和保水能力的影响。
The stoma morphology, leaf development characteristics and leaf water-holding ability of Cylocarya paliurus seedlings from three provenances were investigated after salt treatments.
利用保角变换，首先在二维平面得到双曲线型的等位线簇方程，然后过渡到三维空间，从而得到表面为单叶双曲面（两实半轴相等）的带电导体的等位面簇方程。
Transition to the three-dimensional space, then we obtain the equation of equipotential surface families of charged conductor with surface of hyperboloid of one sheet.
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